Is it normal to think some aliens are actually from earth?
I've always taken UFO sightings with an open mind and watch documentaries on the topic. Putting two and two together I wonder if there is a race of Earthlings living within the earth or sea, or both. Pilots, seamen and people on shore report seeing alien craft dive into or out of water. The sea bottom is largely unexplored. People claim to have seen them go in or out of large holes and dormant volcanos whose bottoms have never been explored. UFO sightings tend to congregate around times and places when/where major Earth events have happened, like nuclear detonations, earthquakes and volcano eruptions. Maybe they are checking out what's going on on the surface. Ancient civilizations all over the world have tales of a people who live within the Earth. Etc. etc.
What do you think? Normal to consider this possibility?